Just lost my texts and now i can't send texts?

I'm on a tarrif where i get unlimited text 150 mins and 250mb of data (Vodafone)
and i was texting my mother and all of a sudden my texts wouldnt send and then my network went it came up no service on my phone ( i'm using an iphone 3gs i don't care about what phone i have as long as i have one lol ) then my network came back on and i have my internet and my calls but don't have my texts can anyone help me to sort this out

Could be Vodaphone's tower in you area is slammed and it kicks you off. Happens all the time with failed texts. Reset the cellular and data connections on the phone. Then do a restart. Should be fine after that.

Remove your battery and give it a good blow out with a vacum

You could try to go on the vodaphone website and do a live chat with them and ask them if there are any problems in your area and tell them about your problem